Feed-regulator for screening and other apparatus.



G. H. FRASER. FEED REGULATOR FOR SCREENING AND OTHER-APPARATUS.

APPLICATION FILED SEPT. 24, 1908. RENEWED MAR. Iv i916.

Patented. Oct. 2 1,1916.

4 SHEETSSHEET I.

al /M,

WITNESSES:

G. H. FRASER.

FEED REGULATOR FOR SCREENING AND OTHER APPARATUS.

APPLICATION FILED SEPT.24. 190s. RENEWED MAR. 7.1915.

4 SHEETS-SHEET 2- Z E V 3 WITNESSES; I

G. H FRASER.

FEED REGULATOR FOR SCREENING AND OTHER APPARATUS. APPLICATION HLEDSEPT.24. 1908. RENEWED MAR. 7,1916.

Patented 00c. 24,1916.

4 SHEETS-SHEET 3.

W TN E SS E S 4%mw G. H. FRASER.

FEED REGULATOR FOR SCREENING AND OTHER APPARATUS. APPLICATION FILEDSEPT.-24, I908. RENEWED MAR. 7,1916. mmaz m Patented Oct. 2%,1916.

4 SHEETSSHEET 4.

TNESSES:

l AL

GEORGE HOLT FEED-REGULATOR HUI-t SGIG'JBEN l .20" Willi. Specification ohetters Patent.

N :Mil a J YORK .l-MIMLTUS.

Piste-sited (let,

a i i .2 that Application filed September 2Q, 1908, Seria 1%. 154.664.Itenewed March I 1916. Serial 1%. 823".30.

To m7 Ha lo/a 1'15 mxr (-mu'ern:

lie it haowu that l (immune llUL'i human a eitizen of the lniled States,residing" in the horough ol llrooldvn, eounty of Kings, eitv and Stateol New Yul'li have invented eerlain new and ur-ietulllll1)l'()\'(lllvlllifi in Feed-llegulator tor Hen-wring and otherApparatus, M which the following is a apeeilieatiou.

This invention relates to 'l'eeders for such apparatus as sereena torseparating coarse 'l roui line materiala. and aiuns to provide cer--tain iinproveuieuta therein.

The invention is espeeiall applieahle to inelined sei'eens of the r-lansin whieh the material to he screened is distributed acrosn the upper endof the sereen hy a serew eon ve ver and flows down the aereen while thelatter is vibrated to prevent (dogging. Sueh ineliued sereens areusually adjustahle to vary the steepness ol the sereein and are, usuallysupported hv springs and vibrated hv eeeentries or hammers.

This invention aims to provide a feeder for w'reens oi this type whiehshall he more nearl v universal in adaptation to the par tieularreipiireinenls of use more easily aeoessil ie for zuljuslinent andrenewa and. more ell'eetive in operatioln than liei'eto'loie.

To this end the invention provides various improvements; whieh will hehereinafter more full) set 'l'orth with relerener. to the aeeouipanviugdrawingsv in which.

Figure l is a side elevation of the proterred 'l'orm ot ln v invention:Fig. 2 is a r ar elevation'thereol partly hrolten away to show theinaehine in seetion on SllllHiiUltiallv the planes ol the line "3 2 inFig: l-

Fig. 3 is a vertieal Slt'liUIi thereol out on the line 23--I; in Fig. 2and looking in the direetiou ol the arrow: Fig. lis a frank ineutarvperspeetive view of the l eed hopper and trough: Fifi. 5 is aerosa-seetion eut on the line 5--5 in Fig. l and lookingin the direetionol" the arrow: Fig. (3 is a erosw seetion eul on the line (i-- i oi'Fig. 3 and looking in the direction of the arrow; Fig. 7 is alragnientarv tare view oi one of the screen frames partly broken awayand on a larger se: le; Fig. 8 is a fragnnenlar5" seetiou thereol'; Fig..l a l'ragineutarv sew tional view of the hnoeltiug' (l mit-e; Fig. it)in a perspeetive view ol" the end ileeel trough; and Fig. 11 is a peraa-etive view of the center feed trough.

.llel'erriiug to the drawingra, is the feed lmp iier. l5 the eonwver fordistributing; the teed the drive pulley l) the drive shaft, it the teedtrougzln F the rear teed plate, (2 the trout :teed plate, ll the screensrai'iieia l the. aereens, J the vihrators, K the springs, 1 the lineoutlet. Til. the ((lillSfi. outiet, N the side valls, (l the hottoniwall, i the top door-5. Q- the lov-cer door, ll the hael: door, El thefront and rear doors T the feet and l the legs.

The inateria i be screened enters the hopper and pushed along the troughby the revolving! eonvevxw which throws it over the edge of the 'lroi 'has it travels, so that it talls onto the feed plate in a substantiallylllll'l ol'lll quantity at all points throughout the width of thesereeu. The material slides down the 'leed plate and onto the screen'loth, down which it llowsa the line material falling through then'u-shen oi the screen and the eoarse inaterial sliding down the upperlaw of the sereen. The tine material [lows down thehottonz to the utletL, and the eoaifie material llowa oil" the .wsreen and passed 'thrmurhthe outlet I'll The screen is: vihrated to prevent dogging. and isadjusted up or down on the legs l to the desired steepnese.

\eeordine' to one 'l'eatare of improv ment the hopper A in a winding havine; llangefi o: depending at Front and at rear of the convever sidellangeh ahove the ouvevel'. and top flanges r surrouiuling its inlet forreeeiviue' lhe end of a ehu'i'in and is adapted to he phi-red at eitherend or at the middle of th separator and to reeeive feed from anydireelion.

)iimi'gher feature of improvement rl'ousists in providing the feedtron;- i with d1. eharge wines at hoih its front and rear sid s, \vhiehedgm are inelined from the feed point dovvnvvm'dlv toward the end and,are adjustable in inclination so that the angle of the edge may hesuit-ed to cause a uni l n'ni diaeharge of material throughout the ehQtll of the trough. Preferably the 1 trough is made with reverseinclined edges, so that when the hopper is at ("1e end and the eonveyerrevolved in. one direction, the material can be discharged over the rearedge ol the trough. and, when the hopper is at the other end and therevolution of the ronvever is rev Pied, the material can he disshaigzedover toe front edge of the inm'iateriai whether the Elli terial from thetrough rliarged over the rear ed l trough. I prefer to construct thetrough of a single sheet. eurveil to suit the con rever ant.suliieiently tlexihle to permit its ends to be re atively distorted foradjusting the angularity ef its edges, and to elleet this adjustment hretaining srri-avs c which hold it in plaee. lit earh end at the lowside the trough is cut out to form an outlet f for an; material that hasnot been thrown over the ed e. and this outlet at the mapper end isclosed by a shield g pivoted to the hopper at It and engaged h theadjacent screw which shield prevents material Falling through the hoppert'rom escaping; at this side of the trough. With this eonstruetion itpossible to place the hopper at either.

end of the trough and run the ('0n\e i,'er in either direetion, so thatit. will feed the mate rial ovw the edge which inclines downwardly fromthe hopper, thus making itdrive is right hand or left hand.

recording to another feature of inn r ';veintent provide in feed platesheneath the eoni'eye. the rear plate F receiving the maif when it isdisge or the tl't'ilhil'll and directing it torwari y down onto thescreen. and the front plate G receiving the material when it isdiscliarg ed over the tron"; edge or the trough and di'eeting itharkwardly onto the plate 1. from whirh it slides onto the Screen. anthat the material is de livered to the reen in the same manner whetherthe discharge is over the front or the rear edge of the feed trough. Theplates and it incline toward each other in order to bring the material,always to the same plaee for delivery to the aereen. \i'i'hen thematerial disehaig; d over the front edge of the trough. to llltJQlit thetall of the material ilirevtlv onto the #ereen. the liingred edge 11 atthe plate I will he used on the rear plate. hut when the mate'ial is tohe ted over the rear edge of the .rrumgh the plates will he .rawersed.or the hinged edge ol the plate 1 will he unhooked and l'astened on theplate (1. where it will hang, thus enahliirie the material to llow ontoth sareen nearer the uppermost end thereof. This hinged edge rests onthe srreen frame and vibrated thereby.

The screen frame ll consi. of frame having {grooved alideways 2' thevarious iseetio is of the uerren I slide and by whieh the) are guided.flhe adjaxent edges of sereen sections are ent a n-d hy an open in whu-helanipingj strips held down by arrews Z: littweeii the sections andsr-rewing- Atthe sides l provide mine; angles-1 1 which tit; against theside screen Frame and carry the iieh the Frame is depre..*d. h gniiles2' a id side angles [77,- are united '1 top angle 0 and a bottom anglen. and

' a hy wi tion by hanging: rods 1 hooking: into aerew eves r so that theframe. is free to move up and down. The sereen frame is held up againsta atop wall s by the spring K through the medium of Spring rodseonsisting of adjustable e ves f passing through the sides in, and:nljustahle hoolei a passing through the front and earrving the -pringrsK. Thus the frame is elastirally hupportrd so that it ran be depressed.and when released will he drawn up suildenlv against the stop wall hythe springs. and will thus he given an alu'upt upward jolt to tree thesereen from any (logged material. l'nhoole ing the spring rods and thesupporting rods 7 trees the spring frame tor removal. 'hen thus freed itwill drop down until supported hr its lower hill p. when it ran heswung: down like a door and removed either through the Front or r *ar.

Several leatures of improvement are emhodied in the agitatiii; devices(l. whirh eonsist of wrillatingr lUlOt'litlS n mounted on l()('l((lshafts Ir and having walls enihrarinpj the linggers a. andserrated.striking l'are which engage these lingers tor depressing thescreen. l he fares .r and fingers 1/ are relatively disposed to permitvariation of the depressing movement hy adjusting the lin rs toward orlrom the shaft hr hunding them or otherwise. so that when the lingersare in one position the maximum movement will occur. and when in anotherposition the mininunn movement will owur. as iiulirated in dotted line.-in Fig. J. This deviee aims to depress the frame with a diminishingspeed and to release it with an inert-axing speed. so that the aereenwill reeeive a sharp upward lilow against the wall a when released. Thisis :ir'eomplished hv osrillatinn the hlltlt'lv'tfl' r h the arm I/ whiehis oeeillated trom a erank on the drive shalt l). the parts heing'so di.-posed that the l no -l er engages the linger as the erankappri'iai-hes the dead renter. and release. the linger as the rranh ismoving toward the tall throw position. the lost. motion hetween thel\'l1()(l\'(l and linger living; ill ranged so that the liizorli'er willhe inellerlire during iia rapid movements. and etl'w-t'ive during; itsslow movements, thus avoiding too .Qreat a vibration of the spring frameand preventing too nun-h alrain on the linorher. The knorlcer arms 1/are ((111- nerted hf. a eonneetiir; rod and are eon IJWtWl with the(rank ill a pitman i). llarli arm has an integral oil ('up w rlosed h a,i-over 1/. and the pitman has a similar oil pasacd to hold ihc .1 and alower cde'e or flange ft of greater annularitv than the wall a. and atit. upper end with an in\\'ardl proje ted portion i having trout andrear lianp'ca j 'i'or nupporting the plates i and ti. and a deflectingi'lang'e L at the intersection of these flanges for overlapping theplates at this point and deflecting materiai inwardly toward the screen.The trough bracket 1" is formed or cast on the inner face I to support.the feed. trough. and, has ears i'ofrcceiving the adjusting screws c.Externally the side N has c \lindr.ical hraclcetin spaced apart from thewall to leave an air space for the escape oi dust, in which hrachetsfithearing it having portions shaped like a eminent of a sphere so thatthey may oscillate in any direetion to aiine themselves with the shaftsthey carry. These hearings havev integrai oil cups 0 provided with lugsfor attaching; them to the wall.

'lfhe casing in composed oi. two ends h' united hv a rigid har p at thebottom and a rigid T-har q at the top which hara space the ends anddetermine their positions. The bar p makes the division between the lineoutlct L and the coarse outlet M. and acts as a stop by engaging thelower liar p of the screen i'raine to prevent the i'rame i'roni fallindownwardly when released and port its lower end when the frame is heingswan;- up and down. The har supports the acreen iranic through the rods.i i har r supports the feed plate l and carries the adjacent top loorirl, the lower edge of which door in hinged to thin har and hcntinwardly over the plate to prevent leakage ahove the latter. The backdoor it slider; up under the bar and has an inwardlyhcnt end whichrests; on the inner face at the hair '7. The front plate (i is supportedhy an angle har a which in bolted to the top edge oi the sides N andcarries the upper springs K. The lower springs it are car ried h v aT-har which in holtcd to the upper edges of the ends near their hottom.The. top corcra i rest on the hare a f. and intervening cross hars n.and r. there he inn prci'crahlv four oi these covers. The lower cover .2resin on the ha! 1'" and on a front har 1 The hottom (l is hinged at win a cavity formed in the inner face oi the side. and is fastenedagainst the edges oi the sides and against the under Hldl of the har 1so that this hottom can he swung down to give access heneath the screen.

The entire casing pivotaily mcuntcd on a holt y as; a iulcrunn whichconnects ii to the 'lcci. 'l no that it can he swung up or down to varthe stcepncssoi' the screen. At its upper end it, is ad iustalilvconnected by the holt .2" to the leg V. which has a row oi holes. in anyone of which this holt may he casing at the desired angle.

to sup-- Another 'ilnproveulent consists in constructing the screenlrame with extending rode. o fastened in sockets in the side lHlI'S i3.and of such length that the trame can not he distorted inwardly to lessthan its llllillii;-:'fl1 width. hut adapted to npraid the frame Iniilthe screen cloth is adjusted to the planer tightncas. 'lhe hara areadjustahlv held in the sockets by nails c" engaging notches d" whichprevent the frames from hendingg' apart suliicientlv to drop the hare.One end oi each har is screwthreaded and has a nut c" which can hescrewed outwardly to spraid the hars and stretch the cloth. The nut ranthen he held againstunacrewing hy driving a nail into the bar near it,

its turn far described the screen apparz tus is adapted for anv oi theordinanv uses oi such devices, hut when it is desired to collect theproduct at either side or the middle oi the screen instead oi"discharging; it throughout the width thereoi. I provide a supplementalhase v having a conveyor \V henoath the line outlet and a conveycr Xhencath the coarse outlet. which convevers have hearings in castings Yand are driven i roni the shai't l) Irv a sprocket chain Z. 'lhcseconvcvcrs have troughs consisting of two pierce f and y. the latterhaving a notch in one. end for an outlet. 'lhese two pieces are arrangedend to end with the notch in the center o at either end oi the onveyor.according to where discharge oi the product is desired. The conveyersare identical with the feed convcyer it. except that one is a right handconveyor and the other a. lci'i hand conveyor, and each is made in twoequal pieces with the shafts extendinn entirely through them to supportthe adjacent ends, so that ii central discharge is desired i'or eachlower conveyor, this am he accomplished hy putting a piece oi right handand a piece oi lciiv hand convcycr on each shaii. as; shown in Fig. 2.whereas ii end discharge in desired, like pieces oi convever will he puttogether. Should it he necessary to put the feed hopper at the ceni-cr.two reverse pieces oi convover will he used in the iecd trough, and theteed convever will he used hciow. will he mweaaar r for one oi the lowerconvevera to have an end discharge and the other a central discharge.\Vhcn the i'ecd hopper in used in the center, the supplemental i'cedtrough E will he suhstituted tor the trou 'h E. as the su J )lcmentaltroughhas edges inclined downwardly from the center toward thc enda oneach side, so that it can he used with a right and left convover todistribute in hoth directions and discharge over the front or rear edgeas desired. To more the Feed hopper from one end to the other onto thecenter. it is only necessary to shift it and the top plate ac- ]n suchcase it,

cordingly. this plate being adapted to fit in either position and he cutin the center and cover the two ends when the hopper is placedcentrally. 7 7

In operation, the apparatus may be adjusted to suit any requirements asto feed, discharge, angnlarity orextcnt of vibration. It is accessiblefrom front. rear. top or bottom. Tt canbe ventilated by opening the backdoor R and the front door Q. or either of them. The greater steepnessot' the bottom willinsure downllow of the line mate rial. even when thescreen proper is adjusted below the usual steepness. The screen framescan be I'OH'IOYOd individually through the front or rear. or through thebottom r top.

For packing. the feet and legs can be folded against the body. and greatcompactness obtained. Assembly and disconnection can be quicklyetl'ccted. and adjustment of either spring pressure or extent ot'vibration is easily obtained. The drive pulley and vibrating arms can beplaced on either side. and the oscillating hearings will rock in theirbrackets to compensate For any shewing of the frame due to unevensetting.

The various details ol construction. arrangement and combination showneach constitute a feature of innn'ovcu-icnt and a pan of my invention.and it will be understood that T do not limit mysclt to the particularadaptation herein set forth as consli tuting the preferred Form o'l myinvention. sir the same may be availed oi in whole or in part. accordingto such modifications as the judgment of those skilled in the art maydictate. without departing from the spirit or my invention.

T prefer to also use an adjustable knocking" stop rod 1'. over themiddle ol the screen. This hasthe same ctl'ect as the flanges .s.

\Vhile l have. herein shown and described the screen set forth the sameis not claimed in this application. being the subject matter of claimsin my application Serial Kumber il lfitll of 1915. liled June It). 1915.which is a division of this application.

T claim as my invention 1. Tu combination, a reversible horizontaldistributing screw conveyor. means tor re volving it. a trough ormemberbeneath and extending longitudinally ot' said conveyer and havinglongitudinal discharge edges at each side thereof. and means spacedapart from and extending longitiulinally of each side of said trough ormember for pcrmitting material to llOW over either discharge edgethereof and causing such material to ilow beneath said trough in a thinwide stream.

2. Tn combination. a screw conv'eycr for distributing material, m'anstor revolving it, an open top trough or member extending longitudimdlyof said conveyer consisting of a curved sheet beneath and adjustablearound said conveyer having an inclined longitudinal discharge edge atthe side of the latter, and means for adjusting said trough about theaxis of said conveyer to raise or lower said edge.

3. The combination with a reversible screw conveyor for distributingmaterial. of a trough for said conveycr having at its front and rearsides edges of reverse inclination over either of which the conveyor maydischarge according to its direction of rotation.

l. Tn combination. a screw .o11veyer for distributing material. meansFor revolving it, a trough or member extending longitudinally oi saidconveycr consisting of a curved sheet having an inclined integrallongitudinal side discharge edge. and means for adjusting said trough tovary the inclination of said edge.

Tn combination. a screw convcycr for distributing material. means forrevolving it. a trough or member extending longitudinally of saidconveyer consisting ot a llcxiblc sheet ha ing a longitudinal edge atthe side of said conveyer over Which material is discharged thereby. andmeans For twisting said sheet to vary the inclination of such edge.

(3. Tu combination. a reversible horizontal distributing screw convcyer.means for re volviug it. a trough or member extending hmgitmlinally ofsaid conveyor and having a its front and rear sides longitudinaldischarge. edges across either of which said convcycr may dischargeaccording to its dircction of rotation. and means extendinglongitudinally rd and spaced apart from the respective discharge edgesof lll(l trough tor causingmaterial lowing across either edge thercol to[low away from said ta'ough in a thin wide stream.

7. Tu combination. a reversible horizontal distributing screw convcycr.mean for revolving it. a trough or member extending longitudinally oisaid conwycr and having at its front and rear sides longitudinaldischarge cdgcs across either of which said conveyor may dischargeaccording to direction of rotation. and a casing for such parts havingfront and rear walls opposite. extending longitudinally of. and spacedapart from. said edges respectively and permitting material {lowingacross either of said edges to pass between said casing and lrongl teither side of the latter.

8. To combination. a reversible horizontal distributing screw convcyer.means for res volviug it. an adjustable trough or member beneath andextending longitudinally of said convcyer and having at the trout andrear sides thercot' inclined longitudinal discharge edges .over eitherof which said couveycr may discharge according to its direction of llldltlfi ill) Lil

rotation, means extending longitudinally of and spared apart from therear edge 01 said trough for causing material lowing over such edge totravel in a forward direction in" a thin Wide stream) 9. In combination,a reversible horizontal distributing screw conveyer, means for revolvingit, a trou 'h or member extending longitudinally of s d eonveyer andhaving at its front and rear sides inclined discharge edges, and. meanslongitudinally of and spaced apart from the respective discharge of saidtrough for permitting material to 50W over either such edge and causingit to flow away therefrom in a thin wide stream. 10. in combination, ascrew eonveyer for distributing material, means for revolving it, a.trough or member extemling longitudinally 01 said conveyer and having alongitudinal discharge edge at the side thereof and consisting; of anarc-shaped sheet, a second arc-shaped sheet extending longitudrnally ofand embracing the exteriorot said trough or member, and means foradjusting said sheets about the axis of said conveyer. In Witness-Whereuf, I have hereunto signed any name in the presence of two suhscribing witnesses. GEOE Witnesses;

. Final) 11cm,

THOMAS l. WALL-Ace.

GE HOLT FR ASER

